To Add a Feature Line to a Surface as a Breakline

Use this command to select one or more feature lines from a drawing and add them to a surface. You can use breaklines to define features, such as retaining walls, curbs, tops of ridges, and streams.

When this command is selected, it will prompt for the surface, then prompt with the Add Breaklines dialog box.

1. Right-click a feature line Add To Surface As Breakline.
   Note: If there are no surfaces in the drawing, you are prompted to create one.
2. In the Select Surface dialog box, select a surface, and click OK. Or, select the Add button to create a new surface.
3. In the Add Breaklines dialog box, specify the breakline options. Click OK.
   Note: If you list a feature line or view its properties, you will see the names of the surfaces and breakline collections that the feature line is part of.